Load test tool for starter and generator

Abstract

The utility model relates to a load test tool of a starter generator, which comprises a shell, a rotating main shaft arranged in the shell; the paddle is fixed with the end part of the main shaft outside the shell; the volute is fixed to the shell and provided with a spiral air inlet channel and an axial air outlet channel located in the middle of the interior of the volute. The paddles are positioned in the air outlet channel; the volute is arranged, the paddle is arranged at the end of the main shaft, the paddle is rotationally located in the volute, when the paddle rotates along with the main shaft, air enters the paddle from the air inlet channel and is finally exhausted through the air outlet channel, and the axial load of the main shaft of the generator is detected by recording the air inlet flow and the axial displacement of the main shaft.

Description

Technical Field

[0001] The utility model relates to the field of load testing tooling, in particular to a load testing tooling for an electric motor. Background Art

[0002] The starter generator motor is a device used to start the motor and generate electricity after the motor is started. When the starter generator motor is used in the field of drones, the starter generator motor will receive axial load from the wind when working, which will cause the main shaft to deviate axially. The existing solution does not test the axial load of the main shaft in the drone, and thus it is impossible to know the maximum load of the starter generator motor.

[0003] In summary, how to detect the axial load of the Qifa motor spindle has become an urgent problem that researchers in this field need to solve. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to detect the axial load of the main shaft of the Qiqi motor;

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The utility model is a load test tool for an electric motor, comprising: a housing, in which a rotating main shaft is arranged; a blade, which is fixed to the end of the main shaft outside the housing; a volute, which is fixed to the housing, and has a spiral air inlet channel and an axial air outlet channel located in the middle of the volute; the blade is located in the air outlet channel;

[0007] In this scheme, a volute is provided and a paddle is provided at the end of the main shaft. The paddle rotates inside the volute. When the paddle rotates with the main shaft, wind enters the paddle from the air inlet channel and is finally discharged through the air outlet channel. By recording the air inlet flow rate and the axial displacement of the main shaft, the axial load of the main shaft of the inspiration motor can be detected.

[0008] In order to increase the load of the main shaft, the utility model adopts a pressure relief hole opened in the axial direction of the main shaft;

[0009] By setting the pressure relief hole, part of the wind will be discharged from the pressure relief hole. When the main shaft is subjected to the same axial force, the air inlet flow rate will increase accordingly, thereby increasing the load on the main shaft.

[0010] How to realize the connection between the shell and the volute, the utility model adopts the method of fixing the shell and the volute by bolts;

[0011] The volute and the housing can be fixedly connected by bolts.

[0012] The beneficial effects of the utility model: the utility model is a load testing tool for an induction motor. By setting a volute, a paddle is set at the end of the main shaft, and the paddle rotates inside the volute. When the paddle rotates with the main shaft, wind enters from the air inlet channel to the paddle, and is finally discharged through the air outlet channel. By recording the air inlet flow rate and the axial displacement of the main shaft, the axial load of the main shaft of the induction motor can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] In the figure: 1-housing, 2-main shaft, 3-blade, 4-volute, 5-air inlet channel, 6-air outlet channel, 7-pressure relief hole. DETAILED DESCRIPTION

[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0018] like Figure 1-2 As shown, the utility model is a load test fixture for an inspiration motor, comprising: a housing 1, in which a rotating main shaft 2 is arranged; a blade 3, which is fixed to the end of the main shaft 2 outside the housing 1; a volute 4, which is fixed to the housing 1, and has a spiral air inlet channel 5 and an axial air outlet channel 6 located in the middle of the volute 4; the blade 3 is located in the air outlet channel 6;

[0019] In this scheme, a volute is provided and a paddle is provided at the end of the main shaft. The paddle rotates inside the volute. When the paddle rotates with the main shaft, wind enters the paddle from the air inlet channel and is finally discharged through the air outlet channel. By recording the air inlet flow rate and the axial displacement of the main shaft, the axial load of the main shaft of the inspiration motor can be detected.

[0020] like Figure 2 As shown, in order to increase the load of the main shaft, the utility model adopts the main shaft 2 to open a pressure relief hole 7 in the axial direction;

[0021] By setting the pressure relief hole, part of the wind will be discharged from the pressure relief hole. When the main shaft is subjected to the same axial force, the air inlet flow rate will increase accordingly, thereby increasing the load on the main shaft.

[0022] How to realize the connection between the housing and the volute, the utility model adopts the method of fixing the housing 1 and the volute 4 by bolts;

[0023] The volute and the housing can be fixedly connected by bolts.

[0024] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A load test tool for an inspiration motor, characterized in that: include: A housing in which a rotating main shaft is disposed; a blade fixed to the end of the main shaft outside the housing; A volute, which is fixed to the housing and has a spiral air inlet passage and an axial air outlet passage located in the middle of the volute; The blades are located in the air outlet channel.

2. A load test tool for an electric motor according to claim 1, characterized in that: A pressure relief hole is axially provided on the main shaft.

3. The load test tool for an electric motor according to claim 1, characterized in that: The housing and the volute are fixedly connected by bolts.

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